contributing.md

Contributing

Add new resource type (ex. Redshift resource)

1. Create your feature branch (git checkout -b add-type-redshift)
2. Generate template files (bundle exec bin/toolbox template redshift)
3. Fill files with code.
4. Generate doc/resource_types.md (bundle exec bin/toolbox docgen > doc/resource_type.md)
5. Run test (bundle exec rake spec)
6. Push to the branch (git push origin add-type-redshift)
7. Create a new Pull Request

Append resource type document (ex. VPC resource be_available)

1. Create vpc.md (touch doc/_resource_types/vpc.md)
2. Write following document.

### be_available
(Write cool description)
```ruby
describe vpc('my-vpc') do
   it { should be_available }
end
```